Xu Tengfei has become accustomed to William Bryan's persistence.

Although they have not been together for much time, they have known each other for a long time. He has known William Bryan since he studied abroad.

Xu Tengfei is five years older than William Bryan. He was invited to give a lecture at William Bryan's school as an entrepreneur before. Xu Tengfei was in a hurry. He originally planned to finish his speech within five minutes and perfunctory the students below.

But who knows, in the middle of talking, suddenly came an understatement voice: "You are wrong."

Xu Tengfei was stunned. William Bryan's voice was not loud at that time,...